are prepping behinddthe scenes - letting their runniig and ccmpeeiiive statts. in iowa paul ryan fieldee questiins on the types of domestic issues thee presidential candidates will address wednesdaaynighh. ryan says: "look, there's only one person who has raised taxes and is promising to raise taxes in the future who's running for ppesident and his name is barack obama." joe biden headed to north carolina - rguing romney would help the weaathyyat the expense of the middll ccass. biden says: "iiknow i'm not the only one who as found it strange for governor romney to write off 47 percent in country." presidentt obama is rehearsing at nevada resort - working on keeping his debate answwrs short and not getting ruffled "theyyre making mm do my homework." romney - ii - took a lunch reak with ohho - senator rob portman - ii ddbate stand in for the presidentt romney didnn answwr any questions about the if he seizes on the economy, o'donnell says: "if he's able to pin blameefor the economy on the presideet, his governor romney's numbers will ptart to come p."davis says:: "